Casement-adjuster.



WE CfLEA.

BASEMENT ADJUSTER. APPLICATION FILED MAR. Is, IsIa.

Patented Dec. 31, 1918.

57 42 (54 43 59 Zi/j u @fw rfid WILLIAM C. LEA,

or Los ANGELEs, CALIFQRNIA.

CASEMENT-ADJUSTER.

To all whom t may concern.'

Be it known thatI, WiLLIAM C. LEA, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles, State ofCalifornia, have invented a new and useful Casement-Adjuster, of whichthe following is a specification.

My invention relates to easement adjusters,

` being more particularly a device for opening and closing casements andfixing the lcasement in either extreme position or int-ermediatepositions.

The principal object of my invention is produce a easement adjuster ofsimple form and construction which may be attached to the ordinary formof window construction.

Other objects and advantages will appear hereinafter from the followingdescription and drawings.

Referring to the drawings, illustrative purposes only,

Figure 1 is a sectional plan View of a casement frame showing a deviceembodying a form of my invention mounted thereon.

Fig. 2 is a view similar to Fig. 1 showing the easement in openposition.

Fig. 3 is a plan view of a portion of the adjuster, partly in section.

Fig. 4 is a sectional view on line 4.4, Fig. 1.

Fig. Fig. 1.

Fig. 6 is a sectional view on line 6-6, Fig. 4, and

Fig. 7 is a perspective view of a swivel block and. follower.

The mechanism for operating the casement is largely contained within acasing designated at 11, which casing consists of a b-ase plate 12 and acover 13 shaped like a box and having flanges 14 which receive screws 15which extend through the base plate 12 into the sill 16.

The frame of which the sill 16 forms a part is of ordinary constructionhaving jambs 17 to one of which is mounted, by means of suitable hinges18, a casement sash 19, said sash being mounted to swing outwardly fromthe frame.

In the form shown, the operating mecha.- nism or adjuster is concealed,that is, the adjuster is covered by means of a stool 20, a filler block21 being provided between the stool and the sill leaving a space orchamber sufficiently large to receive the casing which are for 5 is asectional view on line 5-5,

Specicatiou of Letters Patent.

Patented Dec. 31, 1918.

Application filed `March 18, 1918. Serial No. 223,241.

or box 11, and in the form shown, the apron 22 extends a sufficientdistance upward to engage the under side of the stool 20, a portion ofthe upper, inner edge of the apron 22 being cut away, as indicated at23, to accommodate the casing 11. It is, however, to be understood thatinstallations of the adjuster may be made on the common window frameswithout concealing the adjuster as above described, in which case thecasing 11 would be mounted directly on the stool. Secured to the innerface of the sash 19 is a guide 25 in which is slidably vmounted a guideblock 26, the lower edges of the guide 25 being t-urned inwardly, asindicated at 27 in Fig. 5, to retain the block 26 therein. The guideblock 26 means of a pin 28 on the outer end of an operating bar 29, theinner end of the bar 29 extending through an opening 30 in the cover ofthe box 11 where it is provided with an offset portion 31 pivotallymounted to the base plate 12 by means of a stud 32 mounted in the Saidbase plate. f 35 designates a nut mounted to travel on the threaded endof a shaft 36. The nut 35 is provided with upper and lower trunnions 37and 38 respectively, 'the lower trunnion 38 extending into the operatingbar 29 and the upper trunnion 37 extending into a bracket 39 which issecured to the upper face of the bar 29 by means of a bolt or rivet 40,and also by means of the stud 32 which extends through said bracket 39.By the construction just described it is evident that the nut 35 isswiveled between the bracket 39 and the operating bar 29, the trunnions37 and 38 permitting the nut 35 to swing freely between the saidoperating bar and bracket.

42 designates a swivel block which engages a reduced portion43 of theshaft 36, there being a shoulder at each end of the reduced portion 43engaging the opposite faces ofthe swivel block 42 thereby retaining theshaft in the swivel block, permitting the turning of the same therein,but preventing any longitudinal movement of the shaft in the swivelblock. 44 designates a trunnion on the lower end of the swivel block 42,which extends into the base plate 12. 45 designates a follower whichfits into a recess 46 in the upper face of the swivel block 42, thefollower being cut out, as indicated at 47, to fit over the reducedportion 43 of the shaft 36. The follower 45 is provided with a trunnion48 which extends into a bracket 50 which bracket 50 is secured Vto thebase plate l2 by means of suitable bolts or screws 5l. B theconstruction of the swivel block 42 and the mounting of the same as justdescribed, it will appear that the swivel block 42 may freely turn onits trunnions between the base plate l2 and the block 50, the swivelblock comprising a mounting' forV the shaft 36.

The inner end of the shaft 36 is squared, as indicated at 53, andextends through an opening 54 formed in the apron 22 to the inside ofthe frame where it may readily be engaged by means of a suitable crank55 for the operation of the device as hereafter described.

The adjuster works in the following manner:

A crank 55 being placed upon the squared end of the shaft, and assumingthat the parts are in the position shown in Fig. l, by turny ing theshaft with the crank the nut 35 is moved on the threaded end of theshaft 36 toward the swivel block 42. This operation swings the bar 29about the stud 32,

and a continuation of this movement brings the parts into the positionshown in Fig. 2 of the drawing, in which position the casement window isfully opened. During this operation the guide block 26 slides in theguide 25 on the sash from the position indicated in Fig. l to that shownin Fig. 2.

It is to be understood that the sash may be placed in any intermediateposition between the two positions shown in Figs. l and 2 and that inany position the sash is rigid, there being no links or intermediateconnections between the operating bar and the shaft 36 except the nut 35which is directly mounted upon the operating bar, as heretofore defscribed.

It is further to be understood that I do not limit my invention to theoperation of casement sashes as heretofore described, but it willreadily appear to those skilled in the art that the same mechanism mavbe mounted upon transoms for the operation of the same.

What I claim is l.v A casement adjuster comprising` a base plate securedto the casement frame, a swivel block mounted on said base plate, ascrew havingan intermediate reduced portion engaged in said swivelblock,a nut on said screw, a bar pivotally mounted on said base plate, meansforpivotally mounting said nut directlv'on said bar, a guide blockpivotally mounted on the outer end of said bar, and a guide mounted onthe casement sash Y ar ranged'to slidably engage said guide block.

A casement adjuster comprising a base plate secured to the casementframe, a swivel block mounted on said base plate, a screw having anintermediate reduced portion engaged in saidswivel block, a nut on saidscrew, a bar pivotally mounted on said base plate, means for pivotallymounting said nutdirectly on said bar, and means for slidably connectingsaidbar to the casement sash.

3. A casement adjuster comprising .a baseplate secured to the casementframe, a swivel block pivotally mounted on said base plate, a threadedshaft mounted against longitudinal movement in said block, a nut mountedon the threaded end of said shaft, an operating bar pivotally mounted onsaid base plate., a bracket Xed on said bar, trunnions on said nutengaging said bar and said bracket, a guide secured to the casementsash, and meansy on said bar for slidably engaging said guide.

4. A casement adjuster comprising al casing secured to the easementframe., said. easing consisting of a base plate and a cover thereon, aswivel block mounted in said casing, a threaded shaft having a reducedportion mounted in the swivel block, a squared inner end on said shaftextending through an opening in said casing, a traveling nut mounted onthe threaded portion of said shaft, an operating bar pivotally mountedto the base plate within said casing, a swivel connection for mountingsaid nut on said bar, said har extending through an opening in saideasing, a guide secured to said casement having a slot in its underside, a guide block, and a pin on said bar extending through the slot inthe guide to pivotally mount the guide block on said bar.

Intestimony whereof, I have hereunto set my hand at Los Angeles,California, this 7th day of March, 1918.

WILLIAM Q LEA.

Copies ofthis patent may be robtained for ve cents each. by addressingthe Commissioner of Patents,

l Washington, D. C.

